Lens



Paternal Dec. 1o, 1929 UNITED STATES PATENT oFFlcE STANISLAWA BIELECKI,0F NEW YORK, N'. Y.

LENS

Application filed January 29, 1927. Serial No. 164,519.

This invention relates to lenses and is more particularly directed tothat type of lens adapted to be filled with a liquid to cause refractionof light rays.

An object of the invention is the provision of a device adapted to beapplied across projected light rays and having a plurality of tubesconnected therewith for supplying various colored liquids so that anycolor or any combination of colors may be obtained by conducting coloredliquids either singly or in combination into a hollow transparent membershaped in the form of a lens.

A further object of the invention is the l provision of a transparenthollow container which may be in the shape of a lens located across thepath of projected light rays and to which container are connected aplurality of tubes conducting various colored liquids to the containerfor varying the color of the lightrays, means being employed between thetubes and container for causing an even distribution of the fluids tosaid container.

A still further object of the invention is the provision of atransparent hollow container or a plurality of hollow containersdisposed across the path of projected light rays with tubes connected tothe containers for supplying the same with colored liquids, a key boardbeing associated with the tubes for operating individual valves in saidtubes so that the fluids which are under sutlicient pressure to beforced into the transparent hollow containers may be admitted at will tothe containers to produce any color or variation in a color as may suitthe requirements, a flushing tube being associated with the containersfor forcing any colored liquids from the containers.

The invention has been described and shown in its broad aspects only,and it should be understood that it is capable of such modifications andalterations as will better adapt it to existing conditions, and to theconvenience of the user and without deviating from the spirit of theinvention.

In the drawings Figure 1 is a front view in elevation of a deviceconstructed according to the principles of my invention, and

Figure 2 is a side view of the same.

Referring more particularly to the drawings, 10 and 11 designate a pairof transparent containers which may be substantially cylindrical inshape having their opposite faces flat or they may be shown as at 10 inthe form of a convex lens. It will be appreciated that the containersmay be also made in the shape of double convex or concave lens. In otherwords, the transparent container may be simply a container to receiveliquids of varying colors or they may assume the shape of any particulartype of lens adapted to be employed across the projected light rays froma projection camera or located in front of a device having projectedlight rays and employed for advertising purposes. When the containersare in the shape of lenses they may replace a projection lens orobjective.

At diametrically opposite points either of the containers have a tube 12in communication with the interior of the same for conducting liquid tothe chamber within the transparent container and a tube 13 provid- 75ing for a discharge of liquid from said container. The tube 12 isadapted to normally convey water or some transparent fluid to thecontainers. A valve 14 located within a tube 15 connected with tube 12is adapted to con- 80 trol the flow of liquid to the containers. Thevalve is connected with a shaft 16 operated by a lever 17, a link 18 anda pedal 19 pivotally mounted at 20.

A spring 21 connected to one end of the 85 lever 17 and to a fixed point22 is adapted to maintain said lever in a predetermined position such asthe horizontal for maintaining the valve 14 in closed position.Actuation of the pedal 19 causes opening of the valve 90 14 to permitthe flow of liquids through the tubes 15 and l2. The lever 17 may beplaced in any convenient position for closing the valve.

Tubes 23, 24 and 25 are in communication 95 with the container 10 andare respectively connected with tubes 26, 27 and 28. The tubes 26, 27and 28 are each respectively connected with tanks or a source of fluidwhich is colored so that when the levers 29, 30 and 100 feo 31 areactuated the various liquids will be conducted or forced into thecontainer 10. Each of the levers are actuated by their respective pedals19.

A hollow ring 32 is located in embracing relation with a container andare connected to the containers by means of conduits 33 so that liquidwhich is forced into the hollow ring 32 will be discharged into the.container 10 or 11 as the case may be. This hollow ring provides for amore uniform and rapid distribution of the fluids to the transparentcontainers by reason of the fact that the ring is in communication withthe container through a plurality of uniformly spaced connnections.

The liquids may be maintained under pressure by mechanical means or theymay be conducted from a tank which is sutliciently elevated to permitthe liquids to flow by gravity into the container All of the tubes areprovided with valves and are operated by means of levers. Valve 42 inpipe 38 is operated by means of a lever 43. Valve 44 in pipe 39 isoperated by means of a lever 45. A valve 46 in pipe 40 and a valve 48 inpipe 41 are actuated respectively by levers 47 and 49. Each of the tubes26, .27 and 28 are provided with a valve 50 which are actuated by therespective levers 29 to 31 inclusive. The various levers are connectedby links similar to the link 18 and these links are actuated by theirrespective pedals 19. These keys or pedals are disposed upon a key hoardand may be operated manually or mechanically for selectively admittingthe type of colored liquid to a container as may be desired.

lVhen the device is used for advertising purposes the keys may beactuated by some electrical mechanism so that the various liquids can bedischarged periodically into the container and produce any combinationof colors that may be desired.

As shown more particularly in Figure 2 the pair of transparentcontainers 10 and 11 are associated with a projection camera indicatedat 60, through an opening 61 of which light rays 62 are projected.

The operation of my device is as follows:

The tube 15 is designed to provide for a continuous stream of water orother colorless fluid filling the hollow container and carrying alongthe colored fluid admixtures to be blended. The liquids are dischargedthrough the tubes 13. Vhen it is desired to produce anorange coloredlight a valve 1s operated through a key 19 which is adapted to supply ared liquid to the container 10 or 11 and another valve is operated whichwill permit the flow of a yellow liquid through the tube and into thecontainer 10. lVhen the desired shade of color is obtained the valvesare closed. Any other combination of colors are obtained in the samemanner I www by pressing the keys which are labeled for a particularcolor so that the operation of one or more will produce a predeterminedcolored fluid in either or both containers. Again, the red liquid may bedischarged into the container 10 while a yellow liquid may be filledinto the container 11. It4 will be seen by this structure that anynumber of colored liquids may be employed and produce any design forcoloring and such coloring may be produced periodically and in timedrelation with the moving parts of the projection apparatus.

Liquids of different densities may be discharged into either of thecontainers and of various colors so that the lighter liquids will floatupon the heavier liquids whereby one portion of the container willproduce a predetermined color while the remaining portion will produceanother color.

I claim 1. In projection apparatus, a cell having transparent walls andadapted to be -arranged in the path of a projected light beam, said cellbeing normally filled With transparent liquid, and having an inlet forsaid transparent liquid and a separate outlet, means for establishing aflow of transparent liquid through said cell, and means independent ofsaid transparent liquid for selectively introducing into the flowingliquid within said cell, other liquids of different colors.

2. In projection apparatus, a cell having transparent walls and adaptedto be arranged in the path of a projected light beam, said cell beingnormally filled with transparent liquid, and having an inlet for saidtransparent liquid and a separate outlet, means for establishing a flowof transparent liquid through said cell, and means independent of saidtransparent liquid inlet for selectively introducing into the flowingliquid within said cell, other liquids of.dif`ferent colors, said meansincluding a conduit surrounding said cell having branches communicatingwith said cell at separate points.

3. The method of producing color effects by means of a liquid-holdingtransparent cell placed in the path of a projected beam comprising,establishing a flow of transparent liquid through said cell, andintroducing into said cell into the transparent liquid flowingtherethrough, other liquids of different colors.

STANISLAVA BIELECKI.

mmf.; 45.

